"The cover of anonymity for the magazine's writers is an important part of its omniscient stance, among other reasons because it conceals the extreme youth of much of the staff. "The magazine is written by young people pretending to be old people," says Michael Lewis, the author of "Liar's Poker," who now lives in England. "If American readers got a look at the pimply complexions of their economic gurus, they would cancel their subscriptions in droves."